ht82v16 Holtek Semiconductor Inc., ht82v16 Datasheet

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ht82v16

Manufacturer Part Number
ht82v16
Description
16-bit Ccd/cis Analog Signal Processor
Manufacturer
Holtek Semiconductor Inc.
Datasheet
Features
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General Description
The HT82V16 is a complete analog signal pro-
cessor for CCD imaging applications. It fea-
tures a 3-channel architecture designed to
sample and condition the outputs of the
trilinear color CCD arrays. Each channel con-
sists of an input clamp, Correlated Double
Sampler (CDS), offset DAC and Programmable
Gain Amplifier (PGA), multiplexed to a high
performance 16-bit A/D converter.
Block Diagram
Rev. 1.10
Low power CMOS: 350mW
9 ADC clock latency for digital data output
16-bit 6 MSPS A/D converter
3-channel correlated double sampler
1~6 programmable gain
Input clamp circuitry for CDS-mode
Internal/external circuit for CIS
16-Bit CCD/CIS Analog Signal Processor
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The CDS amplifiers may be disabled for use
with sensors such as Contact Image Sensors
(CIS) and CMOS active pixel sensors, which do
not require CDS.
The 16-bit digital output is multiplexed into an
8-bit output word that is accessed using two
read cycles. The internal registers are pro-
grammed through a 3-wire serial interface,
which provides gain, offset, and operating mode
adjustments.
Internal/external voltage reference
Internal MUX for channel operation
1 or 3-channel operation
Pixel-rate switch operation
Programmable 3-wire serial interface
+5V digital I/O compatibility
28-pin SOP (300mil) package
HT82V16
June 7, 2001

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ht82v16 Summary of contents

Page 1

... Input clamp circuitry for CDS-mode · Internal/external circuit for CIS · General Description The HT82V16 is a complete analog signal pro- cessor for CCD imaging applications. It fea- tures a 3-channel architecture designed to sample and condition the outputs of the trilinear color CCD arrays. Each channel con- ...

Page 2

... AVSS Analog ground ¾ 20 REF AO Reference decoupling 21 REFT AO Reference decoupling 22 BIN AI Analog Input, blue 23 CML AO Internal reference output 24 GIN AI Analog Input, green 25 OFFSET AO CIS reference decoupling 26 RIN AI Analog input, red Rev. 1. Description 2 HT82V16 June 7, 2001 ...

Page 3

... TBD ¾ ¾ 5V±10% 1 ¾ 5V±10% ¾ ¾ 5V±10% 1 ¾ 5V±10% ¾ ¾ 5V±10% ¾ -200 5V±10% ¾ ¾ 3 HT82V16 Max. Unit 6 MSPS ¾ 5 MSPS ¾ 16 BIT ¾ LSB ¾ 1.2 LSB ¾ 4 Vp-p ¾ ¾ ¾ ...

Page 4

... I =50mA 4.5 4.9 OH 3.3V~5V I =0.5mA 2.4 OH 3.3V~5V I =-50mA ¾ OL 3.3V~5V I =-0.6mA ¾ OL 3.3V~5V ¾ ¾ 4 HT82V16 Max. Unit 5. ¾ V ¾ ¾ 0.8 V ¾ ¾ mA ¾ ¾ V ¾ V ¾ ¾ 0.1 V ¾ 0.4 V ¾ ¾ June 7, 2001 ...

Page 5

... CDS 1-channel internally-defined mux (01) C CIS/SHA 3-channel internally-defined and pixel-rate mux (00) D CIS/SHA 1-channel internally-defined mux (01) Mode A Note: DATA timing from pixel to pixel is decided by the first rising edge of ADCCLK when CDSCLK2 is from high to low. Mode B Rev. 1.10 HT82V16 Channel Mode 5 June 7, 2001 ...

Page 6

... Mode C Mode D Rev. 1.10 HT82V16 6 June 7, 2001 ...

Page 7

... Interface Timing I/O write operation timing I/O read operation timing Rev. 1.10 Digital output timing 7 HT82V16 June 7, 2001 ...

Page 8

... Latency Interface Timing t Data Setup Time DS t Data Hold Time DH t Enable Setup Time LS t Enable Hold Time LH t Read Data Valid Time RDV Rev. 1.10 HT82V16 Min. Typ. Max. 500 ¾ ¾ 200 ¾ ¾ 50 ¾ ¾ 50 ¾ ¾ 50 ¾ ¾ ...

Page 9

... Green Offset Register Blue Offset Register Color Index Register Function For CCD For CIS dark reference: 1.4V For CIS dark reference: 0V Function For CDS pixel-by-pixel clamp For CDS reset reference<5V Function 3-channel pixel-rate mux 1-channel for internal define 9 HT82V16 June 7, 2001 ...

Page 10

... Color index register Bit7 Reserved Bit6 Reserved Bit5 Reserve Bit4 Index for 3 channel mode Bit3 Index for 3 channel mode Bit2 Index for 3 channel mode Bit1 Index for 1 channel mode Bit0 Index for 1 channel mode Rev. 1.10 where x=0~3 1.5 10 HT82V16 June 7, 2001 ...

Page 11

... Application Circuits Note: Decoupling capacitor of RIN, GIN, BIN may change its value from 300pF to 0.1mF depending on the system environment. Rev. 1.10 R®G®B R®B®G G®R®B G®B®R B®R®G B®G®R Reserved Reserved 11 HT82V16 June 7, 2001 ...

Page 12

... Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.10 12 HT82V16 June 7, 2001 ...

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